D671F Pneumatic Wafer-Type Fully Lined Fluoroplastic Butterfly Valve features a fluoroplastic-lined disc with spherical sealing surfaces, paired with a silicone rubber gasket at the seat base to regulate sealing performance. This valve offers effortless operation, tight sealing, and extended service life, suitable for rapid shut-off or flow regulation.

Application: The D671F Pneumatic Wafer-Type Fully Fluoroplastic-Lined Butterfly Valve is specifically designed for controlling non-corrosive or highly corrosive media. The valve body interior is lined with selectable fluoroplastic materials, suitable for various operating temperatures and fluid pipelines. It features high strength and excellent corrosion resistance.

Design & Manufacturing: GB12238

Structural Length: GB12221

Flange Connection Dimensions: GB4216, JB78, JB79

Operating Temperature: ≤100℃, ≤120℃, ≤150℃ (depending on lining material)   

Materials:

Upper Valve Body: Cast Iron, Carbon Steel, Stainless Steel

Lower Valve Body: Cast Iron, Carbon Steel, Stainless Steel   

Disc: Stainless Steel, Carbon Steel Fully Lined with Fluoroplastic   

Disc Shaft: Stainless Steel   

Seat: PTFE, PCTFE, FEP, PFA   

Spring Strip (Gasket): SiO   

O-Ring: Viton   

Pneumatic Actuator: Assembly

Selection Recommendations